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51830716 = 2271851097
BaseRepresentation
bin1100010110110…
…1111110111100
310121112021101011
43011231332330
5101232040331
65050525004
71166360650
oct305557674
9117467334
1051830716
1127291203
1215436764
13a979782
146c52a60
15483c3b1
hex316dfbc

51830716 has 12 divisors (see below), whose sum is σ = 103661488. Its totient is φ = 22213152.

The previous prime is 51830677. The next prime is 51830741. The reversal of 51830716 is 61703815.

51830716 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 925521 + ... + 925576.

Almost surely, 251830716 is an apocalyptic number.

It is an amenable number.

51830716 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51830716 is a wasteful number, since it uses less digits than its factorization.

51830716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1851108 (or 1851106 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 51830716 is about 7199.3552489094. The cubic root of 51830716 is about 372.8456404761.

The spelling of 51830716 in words is "fifty-one million, eight hundred thirty thousand, seven hundred sixteen".

Divisors: 1 2 4 7 14 28 1851097 3702194 7404388 12957679 25915358 51830716